From Gallup.Com: In U.S., Health Insurance Not Necessarily Related to Health

Published: December 16, 2011

Nearly 6 in 10 Americans younger than 65 with health insurance rate their health as either "excellent" or "very good," compared with 36% of the uninsured. Insured Americans are as likely as or more likely than the uninsured to report having ever been diagnosed with certain medical conditions.